According to Treehugger, California alone generates 8 million gallons of leftover paint a year. Which is why San Joaquin County in California is going to be spending $400,000 to develop a program that teaches residents how to buy just the right amount of paint for their project, how to properly store their leftover paint, and how to recycle the paint if need be.
We've got 3/4 of a gallon sitting on our back steps right now. How much leftover paint do you have hidden in the garage?
If you don't live in San Joaquin County, here's a tool that can help you estimate more effectively the amount of paint you might need for your next project.